#include <stdio.h>
struct Xxx
{
    int aa;
    double bb;
};

void main (void)
{
    struct Xxx mm;
    struct Xxx *pp;

    mm.aa = 8;
    mm.bb = 23.2;

    pp = &mm;

//    (*pp).aa = 12 ;
	pp->aa = 12;
//    pp->bb   = 97.2;
    (*pp).bb   = 97.2;

    printf ("%d %lf\n", mm.aa, mm.bb);
}








